Antioxidation Properties of Zinc Dialkyldithiophosphate in the Presence of Organic Oxides.
Journal of The Japan Petroleum Institute, 1995 酸化物を含む潤滑油に酸化防止剤 (以下AO) を追加添加しても期待どおりの効果が見られないことがある。この現象を解明するためにモデル酸化物 (以下MO) を加えたヘキサデカン (以下HD) を試料油として酸化試験を行い, AOの性能を誘導期間法で評価した。異なるタイプのAOに対してアルデヒド (以下RCHO) が最も悪影響を及ぼすことが判明した。RCHOの影響の詳細を知るためにジアルキルジチオリン酸亜鉛 (以下ZDTP) とRCHOの反応を31P核磁気共鳴分析 (以下31P-NMR分析) で追跡して以下のことを明らかにした。(1) RCHOはZDTPの分解を促進し, その結果誘導期間が減少する。(2) RCHOとZDTPの反応は酸素中で進行する。(3) 過酸化物とZDTPの反応は速やかに進行する ...
Ichiro MINAMI +2 more
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Graphene-Based Materials, Their Composites, and Potential Applications. [PDF]
Materials (Basel), 2022 Ramirez MC, Osendi MI.
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Separation and Identification of Zinc Dialkyldithiophosphates by Partition Paper Chromatography
Journal of The Japan Petroleum Institute, 1966 The performance of zinc dialkyldithiophosphates as lubricating oil additives depends on their chemical structure, so increasing interest is being shown in the structural analysis of those compounds.This paper deals with the chromatographic separation and identification of zinc dialkyldithiophosphates having three to eight carbon atoms in the alkyl ...
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Zinc dialkyldithiophosphates adsorption and dissociation on ferrous substrates: An ab initio study
Applied Surface ScienceZinc dialkyldithiophosphates (ZDDPs) have been commonly used as anti-wear additives in the automotive industry for the past 80 years. The morphology, composition and structure of the ZDDPs phosphate-based tribofilm, which is essential for its lubricant functioning, have been widely studied experimentally.
Benini, Francesca +2 more
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Tribochemical Interactions between Graphene and ZDDP in Friction Tests for Uncoated and W-DLC-Coated HS6-5-2C Steel. [PDF]
Materials (Basel), 2021 Kowalczyk J +5 more
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Announcement - 2023 JAST Best Paper Award -
Tribology OnlineThe Japanese Society of Tribologists is pleased to announce that the 2023 Best Paper Award of the Society was awarded to the following papers from Tribology Online.
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Hydrogen permeation through steel during cathodic polarization of lubricating oils in a modified Devanathan-Stachurski cell. [PDF]
Sci Rep, 2022 Boiadjieva-Scherzer T +7 more
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High Performance Liquid Chromatography of Zinc Dialkyldithiophosphates
Journal of The Japan Petroleum Institute, 1984 Teruaki OHNISHI +2 more
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Organic-modified ZnS nanoparticles as a high-performance lubricant additive. [PDF]
RSC Adv, 2023 Kumara C +4 more
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Tribological performance of organic molybdenum in the presence of organic friction modifier. [PDF]
PLoS One, 2021 Wang W +7 more
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